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 is equal to ?

  1. - cos x° + c
  4. cos x° + c

Answer (Detailed Solution Below)

Option 2 :
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Detailed Solution

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Concept:

180° = π radian

Calculation:

As we know that, 180° = π radian

∴ 1° =  radian

So, x° =  radian

Let I = 

Let = t

⇒ dx =  dt

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